阅读说明：本技术 一种杀菌灭毒涂料及其制备方法和应用 (Bactericidal and toxic-removing coating and preparation method and application thereof ) 是由 李生贵 扈显平 李娜 朱银留 闫本轩 李肖伟 张乾龙 汤学成 于 2020-06-10 设计创作，主要内容包括：本发明适用于涂料技术领域,提供了一种杀菌灭毒涂料及其制备方法和应用,该杀菌灭毒涂料包括以下组分：水性丙烯酸乳液、增稠剂、分散剂、消泡剂、成膜助剂、颜填料、聚六亚甲基双胍、金属螯合剂、水。本发明提供的杀菌灭毒涂料,安全无毒、长效稳定,适用于室内涂装,可灭杀空气中的各类细菌及病毒,以改善了传统杀菌涂料只能杀菌而无法高效灭杀病毒的现状。其中,本发明通过添加金属螯合剂可以鳌合聚六亚甲基双胍中的阳离子,从而可以促进聚六亚甲基双胍灭杀呈负电性的各类细菌病毒,以及使得聚六亚甲基双胍的杀菌、灭毒效果能够持续稳定释放,以提高聚六亚甲基双胍的杀菌、灭毒效率,并增强其时效性。(The invention is applicable to the technical field of coatings, and provides a sterilization and disinfection coating, a preparation method and an application thereof, wherein the sterilization and disinfection coating comprises the following components: the water-based acrylic emulsion paint comprises water-based acrylic emulsion, a thickening agent, a dispersing agent, a defoaming agent, a film-forming auxiliary agent, a pigment and filler, polyhexamethylene biguanide, a metal chelating agent and water. The sterilization and disinfection coating provided by the invention is safe, nontoxic, long-acting and stable, is suitable for indoor coating, and can kill various bacteria and viruses in the air, so that the current situation that the traditional sterilization coating can only sterilize bacteria but cannot kill viruses efficiently is improved. The metal chelating agent is added to chelate cations in the polyhexamethylene biguanide, so that the polyhexamethylene biguanide can be promoted to kill various electronegative bacteria and viruses, and the sterilizing and disinfecting effects of the polyhexamethylene biguanide can be continuously and stably released, so that the sterilizing and disinfecting efficiency of the polyhexamethylene biguanide is improved, and the timeliness of the polyhexamethylene biguanide is enhanced.)

1. The bactericidal and disinfectant coating is characterized by comprising the following components in parts by weight: 5-40 parts of water-based acrylic emulsion, 0.1-1 part of thickening agent, 0.1-1 part of dispersing agent, 0.1-1 part of defoaming agent, 0.5-2 parts of film-forming additive, 10-60 parts of pigment and filler, 0.1-1 part of polyhexamethylene biguanide, 0.1-1 part of metal chelating agent and 10-40 parts of water.

2. The bactericidal and disinfectant paint as claimed in claim 1, wherein the bactericidal and disinfectant paint comprises the following components in parts by weight: 20-30 parts of water-based acrylic emulsion, 0.2-0.5 part of thickening agent, 0.2-0.5 part of dispersing agent, 0.2-0.5 part of defoaming agent, 0.8-1.2 parts of film-forming assistant, 30-40 parts of pigment and filler, 0.2-0.5 part of polyhexamethylene biguanide, 0.4-0.6 part of metal chelating agent and 20-30 parts of water.

3. The paint of claim 1 or 2, wherein the thickener is at least one of hydroxyethyl cellulose, polyurethane-type thickener and alkali swelling thickener.

4. A bactericidal disinfectant paint as claimed in claim 1 or 2, wherein said dispersant is a sodium salt of polycarboxylic acid; the defoaming agent is at least one of silicone oil defoaming agent, metal soap defoaming agent and mineral oil defoaming agent.

5. The bactericidal and disinfectant paint as claimed in claim 1 or 2, wherein said film forming aid is at least one of alcohol ester twelve, ethylene glycol monobutyl ether and alcohol ester sixteen.

6. The bactericidal and disinfectant paint as claimed in claim 1 or 2, wherein said pigment and filler is at least one of titanium dioxide, ground calcium carbonate and kaolin.

7. A bactericidal disinfectant paint according to claim 1 or 2, wherein said metal chelating agent is ethylenediamine tetraacetic acid and/or diethylenetriamine pentaacetic acid.

8. A method for preparing the bactericidal and disinfectant paint as claimed in any one of claims 1 to 7, which comprises the following steps:

weighing the water-based acrylic emulsion, the thickening agent, the dispersing agent, the defoaming agent, the film-forming additive, the pigment and filler, the polyhexamethylene biguanide, the metal chelating agent and water for later use according to the parts by weight;

firstly, dissolving polyhexamethylene biguanide in water, then sequentially adding a thickening agent, a dispersing agent, a defoaming agent, a film forming additive and pigment and filler under a stirring state for high-speed dispersion, and then sequentially adding a metal chelating agent and acrylic emulsion for uniform mixing to obtain the bactericidal and antitoxic coating.

9. A bactericidal and disinfectant paint prepared by the preparation method of claim 8.

10. Use of a germicidal, toxic coating as claimed in any one of claims 1 to 7 and claim 9 for germicidal and/or toxic purposes.

Technical Field

The invention belongs to the technical field of coatings, and particularly relates to a sterilization and disinfection coating as well as a preparation method and application thereof.

Background

Coating, refers to a building material that can be applied to the surface of an object to be protected or decorated. In order to improve the versatility of the coating material, functional additives such as a bactericide are usually added to the coating material to provide the coating material with a bactericidal effect.

However, although the conventional bactericidal paint can kill bacteria such as escherichia coli and staphylococcus aureus to a certain extent by introducing an organic compound bactericide or a silver ion bactericide, the bactericidal paint of the type cannot kill a large amount of viruses with smaller volume; therefore, the conventional bactericidal coating has the problems of poor virus killing effect and the like.

Disclosure of Invention

The embodiment of the invention aims to provide a sterilization and disinfection coating, aiming at solving the problems in the background technology.

The embodiment of the invention is realized in such a way that the sterilizing and disinfecting coating comprises the following components in parts by weight: 5-40 parts of water-based acrylic emulsion, 0.1-1 part of thickening agent, 0.1-1 part of dispersing agent, 0.1-1 part of defoaming agent, 0.5-2 parts of film-forming additive, 10-60 parts of pigment and filler, 0.1-1 part of polyhexamethylene biguanide, 0.1-1 part of metal chelating agent and 10-40 parts of water.

As a preferable scheme of the embodiment of the invention, the bactericidal and disinfectant paint comprises the following components in parts by weight: 20-30 parts of water-based acrylic emulsion, 0.2-0.5 part of thickening agent, 0.2-0.5 part of dispersing agent, 0.2-0.5 part of defoaming agent, 0.8-1.2 parts of film-forming assistant, 30-40 parts of pigment and filler, 0.2-0.5 part of polyhexamethylene biguanide, 0.4-0.6 part of metal chelating agent and 20-30 parts of water.

As another preferable aspect of the embodiment of the present invention, the thickener is at least one of hydroxyethyl cellulose, a polyurethane-type thickener, and an alkali swelling-type thickener.

As another preferable mode of the embodiment of the present invention, the dispersant is a sodium salt of polycarboxylic acid; the defoaming agent is at least one of silicone oil defoaming agent, metal soap defoaming agent and mineral oil defoaming agent.

As another preferable aspect of the embodiment of the present invention, the coalescing agent is at least one of an alcohol ester twelve, an alcohol monobutyl ether, and an alcohol ester sixteen.

As another preferable scheme of the embodiment of the invention, the pigment and filler is at least one of titanium dioxide, ground calcium carbonate and kaolin.

As another preferable aspect of the embodiment of the present invention, the metal chelating agent is ethylenediaminetetraacetic acid and/or diethylenetriaminepentaacetic acid.

Another object of the embodiments of the present invention is to provide a method for preparing the bactericidal and disinfectant paint, which comprises the following steps:

weighing the water-based acrylic emulsion, the thickening agent, the dispersing agent, the defoaming agent, the film-forming additive, the pigment and filler, the polyhexamethylene biguanide, the metal chelating agent and water for later use according to the parts by weight;

firstly, dissolving polyhexamethylene biguanide in water, then sequentially adding a thickening agent, a dispersing agent, a defoaming agent, a film forming additive and pigment and filler under a stirring state for high-speed dispersion, and then sequentially adding a metal chelating agent and acrylic emulsion for uniform mixing to obtain the bactericidal and antitoxic coating.

The embodiment of the invention also aims to provide the bactericidal and disinfectant coating prepared by the preparation method.

Another object of the embodiments of the present invention is to provide an application of the bactericidal and disinfectant coating in sterilization and/or disinfection.

The sterilization and disinfection coating provided by the embodiment of the invention is safe, nontoxic, long-acting and stable, is suitable for indoor coating, and can kill various bacteria and viruses (including coronavirus) in the air, so that the current situation that the traditional sterilization coating can only sterilize and cannot kill the viruses efficiently is improved. In the embodiment of the invention, the polyhexamethylene biguanide and the metal chelating agent are compounded for use, so that the metal chelating agent can chelate cations in the polyhexamethylene biguanide, thereby promoting the polyhexamethylene biguanide to kill various electronegative bacterial viruses (such as coronavirus, influenza virus and the like), and enabling the sterilizing and detoxifying effects of the polyhexamethylene biguanide to be continuously and stably released, so that the sterilizing and detoxifying efficiency of the polyhexamethylene biguanide is improved, and the timeliness of the polyhexamethylene biguanide is enhanced.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.